MODAFINIL Lifestyle Interactions

Modafinil 200mg, Oral tablet

Alcohol

· Severity: Major

· Notes for Consumers: Avoid alcoholic beverages while taking this Modafinil. Alcohol may cause drowsiness and other side effects which may decrease the effectiveness of Modafinil.

· Notes for Professionals: Advise patients to avoid ethanol-containing beverages while taking modafinil. There is no information on the effects of concurrent administration of ethanol or ethanol-containing medications with modafinil; the CNS depressant effect of alcohol may reduce the response to modafinil.

Modafinil 200mg, Oral tablet

Food

· Severity: Moderate

· Notes for Consumers: You can take Modafinil with or without most foods. However, Grapefruit-juice and grapefruit may increase the actions or side effects of Modafinil. Do not significantly alter your intake of grapefruit juice while on Modafinil, as increasing grapefruit intake may lead to irritability or nervousness.

· Notes for Professionals: Food delays the rate, but not the extent, of modafinil absorption by approximately one hour. A delayed onset of action of a modafinil dose may result from this interaction, but this may not be clinically significant to the patient. Patients may take modafinil with or without food.

Modafinil 200mg, Oral tablet

Caffeine-containing Foods/Beverages

· Severity: Moderate

· Notes for Consumers: Limit excessive caffeine intake (examples: coffee, teas, colas, chocolate and some herbal supplements) while taking Modafinil. Also avoid medicines containing additional Caffeine whenever possible. Taking a high amount of Caffeine can increase the risk of nausea, nervousness, palpitations, problems with sleep, rapid heartbeat, or other side effects.

· Notes for Professionals: Caffeine is a CNS-stimulant and such actions are expected to be additive when coadministered with other CNS stimulants or psychostimulants.

Modafinil 200mg, Oral tablet

Marijuana

· Severity: Moderate

· Notes for Consumers: The effects of marijuana may be increased and side effects may get worse if it is combined with this medicine. Do not drive or operate machinery until you know how this combination will affect you. Contact your health care provider right away if you notice slurred speech, confusion, severe drowsiness, increased heart rate, or any other new or unusual side effects.

· Notes for Professionals: The incidence of marijuana associated adverse effects may change following coadministration with modafinil. Modafinil is an inhibitor of CYP2C9 and an inducer of CYP3A4, two isoenzymes responsible for the metabolism of marijuana's most psychoactive compound, delta-9-tetrahydrocannabinol (Delta-9-THC). When given concurrently with modafinil, the amount of Delta-9-THC converted to the active metabolite 11-hydroxy-delta-9-tetrahydrocannabinol (11-OH-THC) may be altered. These changes in Delta-9-THC and 11-OH-THC plasma concentrations may result in an altered marijuana adverse event profile.

Modafinil 200mg, Oral tablet

Grapefruit juice

· Severity: Moderate

· Notes for Consumers: You can take Modafinil with or without most foods. However, Grapefruit-juice and Grapefruit may increase the actions or side effects of Modafinil, which may cause headache, nausea and vomiting, nervousness, difficulty sleeping or other side effects. Do not significantly alter your intake of Grapefruit juice while on Modafinil.

· Notes for Professionals: Grapefruit juice has been reported to decrease the metabolism of drugs that are metabolized via the CYP3A4 isoenzyme; grapefruit juice inhibits CYP3A4 in enterocytes. Because modafinil is significantly metabolized through CYP3A4, patients should be advised to not significantly alter their grapefruit juice ingestion.

<b>DISCLAIMER:</b><em> This drug information content is provided for informational purposes only and is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Patients should always consult their physician with any questions regarding a medical condition and to obtain medical advice and treatment. Drug information is sourced from GSDD (Gold Standard Drug Database ) provided by Elsevier.</em>

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